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thermal: mediatek: add support for MT8183 

MT8183 has two built-in thermal controllers with total six thermal
sensors. And it doesn't have bank, so doesn't need to select bank.
This patch adds support for mt8183.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
hifive-unleashed-5.1
Michael Kao 2019-02-01 15:38:13 +08:00 committed by Eduardo Valentin
parent c0d7c861bd
commit a4ffe6b52d
1 changed files with 98 additions and 1 deletions
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99
drivers/thermal/mtk_thermal.c
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@ -71,6 +71,15 @@
#define TEMP_SPARE0 0x0f0
#define TEMP_ADCPNP0_1 0x148
#define TEMP_ADCPNP1_1 0x14c
#define TEMP_ADCPNP2_1 0x150
#define TEMP_MSR0_1 0x190
#define TEMP_MSR1_1 0x194
#define TEMP_MSR2_1 0x198
#define TEMP_ADCPNP3_1 0x1b4
#define TEMP_MSR3_1 0x1B8
#define PTPCORESEL 0x400
#define TEMP_MONCTL1_PERIOD_UNIT(x) ((x) & 0x3ff)
@ -113,7 +122,8 @@
/*
* Layout of the fuses providing the calibration data
* These macros could be used for MT8173, MT2701, and MT2712.
* These macros could be used for MT8183, MT8173, MT2701, and MT2712.
* MT8183 has 6 sensors and needs 6 VTS calibration data.
* MT8173 has 5 sensors and needs 5 VTS calibration data.
* MT2701 has 3 sensors and needs 3 VTS calibration data.
* MT2712 has 4 sensors and needs 4 VTS calibration data.
@ -124,6 +134,7 @@
#define CALIB_BUF0_VTS_TS2(x) (((x) >> 8) & 0x1ff)
#define CALIB_BUF1_VTS_TS3(x) (((x) >> 0) & 0x1ff)
#define CALIB_BUF2_VTS_TS4(x) (((x) >> 23) & 0x1ff)
#define CALIB_BUF2_VTS_TS5(x) (((x) >> 5) & 0x1ff)
#define CALIB_BUF2_VTS_TSABB(x) (((x) >> 14) & 0x1ff)
#define CALIB_BUF0_DEGC_CALI(x) (((x) >> 1) & 0x3f)
#define CALIB_BUF0_O_SLOPE(x) (((x) >> 26) & 0x3f)
@ -135,6 +146,7 @@ enum {
VTS2,
VTS3,
VTS4,
VTS5,
VTSABB,
MAX_NUM_VTS,
};
@ -190,6 +202,29 @@ enum {
/* The calibration coefficient of sensor */
#define MT7622_CALIBRATION 165
/* MT8183 thermal sensors */
#define MT8183_TS1 0
#define MT8183_TS2 1
#define MT8183_TS3 2
#define MT8183_TS4 3
#define MT8183_TS5 4
#define MT8183_TSABB 5
/* AUXADC channel is used for the temperature sensors */
#define MT8183_TEMP_AUXADC_CHANNEL 11
/* The total number of temperature sensors in the MT8183 */
#define MT8183_NUM_SENSORS 6
/* The number of sensing points per bank */
#define MT8183_NUM_SENSORS_PER_ZONE 6
/* The number of controller in the MT8183 */
#define MT8183_NUM_CONTROLLER 2
/* The calibration coefficient of sensor */
#define MT8183_CALIBRATION 153
struct mtk_thermal;
struct thermal_bank_cfg {
@ -236,6 +271,27 @@ struct mtk_thermal {
struct mtk_thermal_bank banks[];
};
/* MT8183 thermal sensor data */
static const int mt8183_bank_data[MT8183_NUM_SENSORS] = {
MT8183_TS1, MT8183_TS2, MT8183_TS3, MT8183_TS4, MT8183_TS5, MT8183_TSABB
};
static const int mt8183_msr[MT8183_NUM_SENSORS_PER_ZONE] = {
TEMP_MSR0_1, TEMP_MSR1_1, TEMP_MSR2_1, TEMP_MSR1, TEMP_MSR0, TEMP_MSR3_1
};
static const int mt8183_adcpnp[MT8183_NUM_SENSORS_PER_ZONE] = {
TEMP_ADCPNP0_1, TEMP_ADCPNP1_1, TEMP_ADCPNP2_1,
TEMP_ADCPNP1, TEMP_ADCPNP0, TEMP_ADCPNP3_1
};
static const int mt8183_mux_values[MT8183_NUM_SENSORS] = { 0, 1, 2, 3, 4, 0 };
static const int mt8183_tc_offset[MT8183_NUM_CONTROLLER] = {0x0, 0x100};
static const int mt8183_vts_index[MT8183_NUM_SENSORS] = {
VTS1, VTS2, VTS3, VTS4, VTS5, VTSABB
};
/* MT8173 thermal sensor data */
static const int mt8173_bank_data[MT8173_NUM_ZONES][3] = {
{ MT8173_TS2, MT8173_TS3 },
@ -433,6 +489,39 @@ static const struct mtk_thermal_data mt7622_thermal_data = {
.sensor_mux_values = mt7622_mux_values,
};
/**
* The MT8183 thermal controller has one bank for the current SW framework.
* The MT8183 has a total of 6 temperature sensors.
* There are two thermal controller to control the six sensor.
* The first one bind 2 sensor, and the other bind 4 sensors.
* The thermal core only gets the maximum temperature of all sensor, so
* the bank concept wouldn't be necessary here. However, the SVS (Smart
* Voltage Scaling) unit makes its decisions based on the same bank
* data, and this indeed needs the temperatures of the individual banks
* for making better decisions.
*/
static const struct mtk_thermal_data mt8183_thermal_data = {
.auxadc_channel = MT8183_TEMP_AUXADC_CHANNEL,
.num_banks = MT8183_NUM_SENSORS_PER_ZONE,
.num_sensors = MT8183_NUM_SENSORS,
.vts_index = mt8183_vts_index,
.cali_val = MT8183_CALIBRATION,
.num_controller = MT8183_NUM_CONTROLLER,
.controller_offset = mt8183_tc_offset,
.need_switch_bank = false,
.bank_data = {
{
.num_sensors = 6,
.sensors = mt8183_bank_data,
},
},
.msr = mt8183_msr,
.adcpnp = mt8183_adcpnp,
.sensor_mux_values = mt8183_mux_values,
};
/**
* raw_to_mcelsius - convert a raw ADC value to mcelsius
* @mt: The thermal controller
@ -726,6 +815,9 @@ static int mtk_thermal_get_calibration_data(struct device *dev,
case VTS4:
mt->vts[VTS4] = CALIB_BUF2_VTS_TS4(buf[2]);
break;
case VTS5:
mt->vts[VTS5] = CALIB_BUF2_VTS_TS5(buf[2]);
break;
case VTSABB:
mt->vts[VTSABB] = CALIB_BUF2_VTS_TSABB(buf[2]);
break;
@ -766,6 +858,10 @@ static const struct of_device_id mtk_thermal_of_match[] = {
{
.compatible = "mediatek,mt7622-thermal",
.data = (void *)&mt7622_thermal_data,
},
{
.compatible = "mediatek,mt8183-thermal",
.data = (void *)&mt8183_thermal_data,
}, {
},
};
@ -898,6 +994,7 @@ static struct platform_driver mtk_thermal_driver = {
module_platform_driver(mtk_thermal_driver);
MODULE_AUTHOR("Michael Kao <michael.kao@mediatek.com>");
MODULE_AUTHOR("Louis Yu <louis.yu@mediatek.com>");
MODULE_AUTHOR("Dawei Chien <dawei.chien@mediatek.com>");
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");